Draining device for life-boats.



IMD. 668,!I9. Patented Feb. l2, IQDI. J. J. PAFF.

DHAINING DEVIC-E FUR LIFE BOATS.

(Application led June 26, 1900.)

(No Model.)

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JOIIN J. PAFF, OF BALTIMORE, MARYLAND.

HAlNlNG DEVIICE FOR LIFENBOATS.

SIEEQATION 'czfming 'part of Letters Patent No. 668,119, dated February12, 1901.

Application filed June 26, 1900. Serial No. 21,609. (No modem To rr/ZZ'zt-Imm, it may concern:

I-e it known that i, JOHN J. PAFF, a citizen of' the United States ofAmerica, residing at Baltimore, in the State of Maryland, have inventedcertain new and useful Improvements in Draining Devices for Life-Boats,of which the following is a specification, reference being had thereinto the accompanying drawings.

This invention relates to life-boats, and particularly to means fordraining waterfrom such boats.

'lhe object of the invention is to provide a novel iorm of valve whichis automatically closed or in which the valve proper is seated by thepressure of air in the valve-casing, said pressure existing so long asthe boat is riding` on the water.

Furthermore, the object of the invention is to provide novel means forattaching the valve-casing to the bottom ofthe boat in such position asto permit the water to drain theret'roin when the valve is open.

Furthermore, the object of the invention is to provide means `forholding the valve open or closed, so that the valve may be operated only'through the manipulation of the valvestein, it desired.

lVith the above and other objects in view the invention consists in thedetails of construction and in the arrangement and combination of partsto be hereinafter more fully set forth and specifically claimed.

In describing The invention in detail reference will be had to theaccompanying draw* ings, forming part oi' this specification, Whereinlike characters denote corresponding parts in the several views, and inwhichlligure i isa central sectional vie w of a portion of a life-boatwith the invention applied. Fig. 2 is a view in elevation of the valvedetached. Fig. 3 is a longitudinal sectional View showing aslightly1nodiiied construction.

In the drawings, 1 indicates the valve-casing, havingan end opening 2,covered by a strainer 3 in order to prevent clogging of the valve. Thevalve-casing has a depending annular lange e, which extends through thebottom of the boat and which is secured therein by the ringnut G. Agasket 7 is interposed between the nut and the bottom of the boat toeffect a water-tight joint. The opening formed by the annular fiangecommunicates with the interior of the valve-casing and is guarded by astrainer 8. The valve-casing is provided with a head 9, having a centralaperture in which the valve-stein lO is threaded. A suitablestuiiing-box ii is secured in any desired manner on the nipple 12 of thehead. The upper surface of the valvestem is slotted, as indicated at i3,near the innerend, the said slot having shoulders 14: at each end,against winch a screw 15 of the valve 16 abut-s. Said valve 16 isslidable on the stem, and the screw and shoulders Serve to limit themovement of the valve. A spring I7 encircles the valvestem and engagesthe end of the valve and the head of the valve-casing. The spring servesto hold the valve normally seated when the valve-stem is screwed in. Inaddition to the spring-pressure I utilize the air-pressure in thevalve-casing when the boat is launched for retaining the valve securelyin place, the pressure within the valve-casing depending on the weightof the boat and its occupants.

As shown in Fig. 3, the strainer 3 is provided with a spider a,converging centrally of the opening of the valve-casing. A stud l) onthe spider projects into the opening of the valve-casing and acts asaguide for the valve, since the end of the Valve is recessed to receivethe stud. This arrangement prevents binding of the valve on thevalve-stem as it slides thereon.

Having fully described myinvention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a draining device for life-boats, a valve-casing in communicationwith the sea through the boats bottom, a valve stem threaded in the headot' the valve and having a slot near its inner end, a valve having amovement longitudinally ou the valve-stem, a screw through the valvetraveling in the slot whereby the valves movement is limited, a springencircling the valve-stem and engaging its head and means for guidingthe valve.

2. In a draining device for life-boats, a valve-casing in communicationwith the sea through the boats bottom, a valve stem threaded in the headof the Valve and having a slot near its inner end, a valve having amovementlongitudinallyon the valve-stem, a

IOO

screw through the valve traveling: in the slot `whereby the valvesmovement, is limited, a

spring encircling the valve-stem and engaging the valve and its head anda. spider having an inwardly-protruding stud, the valve having arecessed end to receive the stud substantially as described.

In testimony whereof I affix my signature in the presence of nwoWitnesses.

JOI-IN J. PAFF.

Witnesses:

GEO. R. JARMAN, WILLIAM E. SCHUL.

